Jasper Yu says to YSITD res=`netstat -tnW | grep MyPort | awk '{print $5}' ` echo $res | awk -F '[.: ]' '{printf("%03d.%03d.%03d.%03d:%05d\n",$1,$2,$3,$4,$5)};' | sort -n | uniq -c -w 16 | nl echo $res | wc -l